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1-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))cyclopropane triflate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138957-87-6

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138957-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138957-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,5 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138957-87:
(8*1)+(7*3)+(6*8)+(5*9)+(4*5)+(3*7)+(2*8)+(1*7)=186
186 % 10 = 6
So 138957-87-6 is a valid CAS Registry Number.

138957-87-6Downstream Products

138957-87-6Relevant academic research and scientific papers

Synthesis of Tripyridiniumylpropenyl Anions from Tripyridiniumylcyclopropanes and -cyclopropenes

Crispino, Gerard A.,Breslow, Ronald

, p. 1849 - 1855 (2007/10/02)

The syntheses of three stable, isolatable tripyridiniumylpropenyl anions are described. 1,2,3-Tris(4-(N-methylpyridiniumyl))propenyl anion and 1-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))propenyl anion were prepared by treating the corresponding cyclopropane with a base. 1,3-Bis(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))propenyl anion was prepared by nucleophilic attack of benzenesulfinate anion on 3-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))cyclopropene.Reduction of this cyclopropene gave either 1-(benzenesulfonyl)-1,2,3-tris(4-(N-methylpyridiniumyl))propenyl anion or hexakis(4-(N-methylpyridiniumyl))benzene depending on the solvent used.

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